principal  | a. highest in rank, authority, importance, or degree  |  
 principle  | n. basic truth, law, or assumption; rule or law of nature; rule of personal conduct  |  
 privilege  | n. special advantage or benefit not enjoyed by all; right reserved exclusively  |  
 procedure  | n. act or manner of moving forward; steps taken in an action  |  
 procession  | n. a line of people who are all walking or travelling in the same direction, as part of a ceremony  |  
 promotional  | a. intended to advertise something in order to sell it  |  
 pronounce  | v. say a word or a letter in a correct way v. state something officially or formally, such as a judgment  |  
 prospective  | a. expected or expecting to be something particular in the future n. people who are expected to buy something, become parents, etc.  |  
 provision  | n. act of supplying or fitting out; food and other necessary items provided n. a condition or requirement in a legal document  |  
 punctual  | a. happening at the expected, correct time; not late  |  
 punctuation  | n. marks to clarify meaning of written material by grouping words into sentences, clauses, and phrases n. something that makes repeated and regular interruptions or divisions  |  
 quadruple  | v. increase fourfold; become four times as big a. having four units or components  |  
 quantity  | n. amount or number of something, especially that can be measured n. an adequate or large amount  |  
 questionnaire  | n. form containing a set of questions, submitted to people to gain statistical information  |  
 rapport  | n. a good understanding of someone; an ability to communicate well with people; emotional closeness  |  
 ravioli  | n. small squares of pasta, often filled with meat or cheese, that are cooked in boiling water  |  
 reassure  | v. comfort someone and stop them from worrying; cause to feel sure or certain  |  
 recollection  | n. a memory of something; power of recalling ideas to the mind  |  
 recommend  | v. suggest that something or someone is the best one to choose  |  
 recruit  | v. register formally as a participant; engage for military service; enlist  |  
 rectangle  | n. a flat shape with four sides and four right angles, with opposite sides of equal length  |  
 regulate  | v. control something, especially by making it work in a particular way; fix or adjust the time, amount, degree, or rate of  |  
 remit  | v. transmit or send, especially as money in payment of a demand v. reduce a period of time that someone must spend in prison  |  
 reservoir  | n. tank used for collecting and storing a liquid; lake used to store water for community use  |  
 restore  | v. give or bring back; return to its original condition  |  
 reusable  | a. capable of being used again  |  
 revise  | v. look at or consider again an idea or piece of writing to correct or improve it; amend  |  
 rupture  | v. cause something to explode, break, or tear; make a sudden noisy break  |  
 saccharin  | n. a very sweet artificial substance that is used to replace sugar, as a calorie-free sweetener  |  
 sacrifice  | v. give up something that is valuable to help another person v. kill an animal and offer it to a god or gods  |  
 secretary  | n. a person who is the head of an administrative department of government n. an assistant who handles clerical work for a boss or an organization  |  
 semicircle  | n. half of a circle, or something in this shape  |  
 semicolon  | n. a punctuation mark ' ; ' used to connect independent clauses  |  
 senator  | n. a member of a senate; a member of the king's council  |  
 series  | n. (plural) a number of things or events standing or succeeding in order; sequence  |  
 shear  | v. cut or clip hair; strip of something; remove by cutting or clipping  |  
 sheer  | a. very absolute or pure; nothing other than a. very steep  |  
 socialize  | v. take part in social activities; interact with others  |  
 sociology  | n. the study of the relationships between people living in groups, especially in industrial societies  |  
 soloist  | n. a musician who performs a single  |  
 solstice  | n. either of the two times of a year when the sun is at its greatest distance from the celestial equator  |  
 souvenir  | n. token of remembrance; something you buy or keep to help remember a holiday or special event  |  
 spacious  | a. wide, generous, or large in area or extent; sizable  |  
 specialist  | n. someone who has a lot of experience, knowledge, or skill in a particular subject n. a doctor who has special training in a particular area of medicine  |  
 specialize  | v. study or work on a particular subject or skill more than any others; particularize  |  
 specific  | a. stated explicitly or in detail; definite  |  
 spectacle  | n. a public event or show that is exciting to watch; an exciting appearance  |  
 spectacular  | a. very exciting to look at; impressive or especially great  |  
 spectator  | n. observer or audience; one who looks on  |  
 sponsor  | v. support a person or activity by giving money or other help  |  
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